GCW Zero - An Open Source gaming console built by gamers for gamers.

Tweakers - Dreamcast debuteerde vijftien jaar geleden

Cryptic Allusion Game Dev home of KallistiOS n amateur development platform for the Dreamcast.
Dreamcast Programming by Marcus Comstedt.

idsoftware forever on Dreamcast ports of Quake I and II, and HeXen II to the Dreamcast.

Sega Dreamcast Info Preservation Games
Sega Dreamcast Info Preservation Games - Doom 2000 Windows CE, see also GitHub - LemonHaze420/DCDoom.

ConsoleMods Wiki - Phantasy Star Online Connection Guide
Sylverant is an open-source Phantasy Star Online server written for Unix-like operating systems.